Useful tools

Duolingo

This one needs no introduction (Duo even made its way in the new Barbie movie!). A good starting point to pick up a new language.

Busuu

While Busuu is not entirely free, it has a wide range of lessons categorized from CERF A1 to B2. My favorite feature is being able to have my writing corrected by the community.

Memrise

Free course for everything and all levels. I love they have videos with real people speaking.

Clozemaster

Clozemaster helps you build vocabulary by exercises like fill in the blanks. A supplementary after some learning.

Language Reactor

With Language Reactor, you can turn on dual subtitles on YouTube and Netflix! It also created catalogue to help you find videos by language, and many more features!

Toucan by Babbel

"Learn a new language just by browsing the internet." - It turns some words on a page into your targeted language and I think it's great.